InChI=1S/C15H28O4/c1-5-14(3,18)10-8-13(17)15(4,19)9-6-7-12(2)11-16/h5,7,13,16-19H,1,6,8-11H2,2-4H3/b12-7+/t13-,14+,15-/m0/s1